fisher



No. 624,200. Patented May 2, I899.

I. H. FISHER.

COMBINED CONCRETE MIXING, TRANSPORTING, AND DUMPING APPARATUS.

[Application filed Nov. 80, 1898.) (No'illodeL) ,2 Sheets$heel l.

Patented May 2, I899.

l. u. FISHER. COMBINED CONCRETE MIXING, TRANSPOBTING, AND DUMPING APPARATUS.

(Application filed Nov. 30, 1898.)

2 Sheets-Sheet 2.

{No Model.)

v m 4 M,

I Nrrsn TAES PATENT. .OFFICE.

ISAAC II. FISHER, OF lVASI-IINGTON, DISTRICT OF COLUMBIA.

CGMBlNED CONCRETE MlXlNG, TRANSPORTING, AND DUMPING APPARATUS.

SPECIFICATION forming part of Letters Patent No. 624,200, dated May 2, 1899. Application filed November 30, 1898. SerialNo. 697,878. (No model.)

2'?) all whom it may concern.-

lle itknown that I, ISAAC II. FISHER, a subject of lhe Queenof Great Britain, residing at .Vashington, in the District of Columbia, have invented certain new and useful Improvement-s in a Combined Concrete Mixing, Transporting, and Dumping Apparatus, of which the following is a specification.

My invention relates to an improvedtransporting, mixing, and (lumping apparatus for concrete designed chiefly for street -work. IIeretofore it has been the general practice in this class of work to prepare the concrete in bulk in a box by manually mixing the proper proportions of the componentsand, rock, cement, and water, after which the prepared concrete is permitted to remain in the box as a supply for use. \Vhen it is desired 10 employ the concrete, laborers impart the finish ing admixture with shovels, load it into wheelbarrows, and wheel it to the place of use. In extensive work the number of laborers so em ployed is very large and much time is lost in the repeated manipulation to which the material is subjected in properly compounding and conveying to and dumping at the place of use.

By my invention I am enabled to largely economize in time, labor, and expense; and to such end said invention consists in an apparatus for automatically and simultanenusly mixing the component parts of theconcretc, transporting it to the place of use, and automatically dumping or depositing it for use, all as hereii'ial'tcr described and claimed,

reference being made to the accompanying drawings, in which Figure I a sectional view on line 1 1 of Fig. II. Fig. 11 is a top plan view. Fig. III is a central vertical sectional view illustrating ihe ai 'iparatus in the operation of dumping. Fig. IV is-a perspeetiw view of the locking device for the mixing-elm:nber. Fig. V is a detail view, partly in section, illustratingthe operation of releasing the mixing-chamber lock. Fig. VI is a detail illustrating, with a modified locking device, the operation of releasing the mixing-chamber lock. Fig. VII is a detail of the bolt for releasing the locking device.

In the said drawings, in which the preferred form of my apparatus is illustrated, the reference numerals 1 indicate the ground or traveling wheels, to the hubs of which ratchets 2 are firmly secured. The wheels 1 are mounted upon an axle 3 of any suitable form or construction, and upon this axle, between the wheels, is mounted a normally free or loose barrellike mixing and transporting chamber at, composed of two parts or sections hinged together, as at 5. The diameter of the said chamber is somewhat less than that of the ground-wheels, wherebyit is supported free from the ground, so that it will not become soiled in the travel of the apparatus and so that while compelled to rotate, as hereinafter described, the portability of the apparatus is much facilitated by the lessening of friction, which would be considerable if said chamber were made to rotate in contact with the ground. At the ends of the chamber and in operative relation to the ratchet -2 are secured spring arms or dogs (3, the free ends of -which engage said ratchets and during the forward movement of the apparatus compel the said chamber to bodily rotate upon the axle 3 in unison with the ground-wheels.

The apparatus as thus far described is de signed for the introduction into the mixingchamber at of a quantity in proper proportion to form concrete of sand, rock, cement, and water without previous admixture. The materials having been so introduced the sections of thechamber are closed together and the apparatus wheeled to the place where it is desired to use the concrete. 'VVhile the transportation is being accomplished the materials are thoroughly intermixed and form a proper concrete by reason of the interengagement of the spring-arms (l and the ratchets 2, which compels the chamber to rotate bodily upon the axle in unison with the ground-wheels, shifting, tumbling, and throwing the material in the receptacle and producing a thorough intermixtnre of the constituents to form the concrete. I have found in practice that my apparatus in traveling the shortspace of thirty or thirty-five feet effects a very satisfactory admixture and forms a proper concrete.

In the drawings I have illustrated an apparatus designed particularly for manual propulsion; but it is evident that it may be employed for horse-power by merely clipping harness to the handle-bar, and other forms IOO ' the chamber L and connectedby a handlebar 9.

My invention contemplates also means for automatically unlocking the-sections, lifting one from the 'other,--arrestingithe movement of one while compelling the'continued rota- [ion of the other, and thus e'ifecting an automatic dumping or deposit of the material at the point of use. 7

- According to the preferred form' illustrated, one section of the-mixing-chamberis provided witha keeper in the form of a ,haspIO and the other with a spring-arm 11, carrying locking-heads 11, normally in engagement with the hasp 10' The locking-heads 12 are separated by a space 12 for the passage of the operating-bolt hereinafterreferred to. This means of locking the two sections together is released to permit'dumping, as now described. Housed in a sleeve 13, supported in the framework, is a bolt 14, adapted to be projected into operative position by a spring 15. The bolt 14 is housed or withdrawn from operation by. means of asuitable handle 16,arranged within.

reach of the operator and extending through a slot in the sleeve, asshcn'n. 17 and 18 are provided at the'ends of the slot,

into which the handle 15 may beshifted to.

hold the bolt in its projected and retracted position, as will be apparent.

gages the-spring-arm 11 just below the hasp 10. When the parts are in the position -de-' scribed, it will be apparent that during the further rotation of the mixing-chamber the -bolt will press the spring-arm toward the wall of the chamber and release the lockingheads .from engagement with the hasp 10 and will then engage the under side of said hasp anda-rrest the rotation of that section of the chamber to which it is secured, permitting the other section to continue in its .rotation and carry the contents of the chain her, said bolt passing through the space 12 between the locking-heads 12. section-will as its hinge-point moves forward ride out and rest upon the arms or runners 8, asshown in Fig. III of the drawings, and

both sections will have their open-mouths facing downward .to dump or deposit the con-.

crete for use. After dumping the travel of the apparatus will be stopped by contact of .the:rotatings'ection with the end of the bolt 14.

Loeki n g-seats.

The end of-the bolt 13 which is exposed when projected en-;

The arrested said pockets the locking-arms areformed with inclined faces 11, whereby they may be spread apart and disengaged from the lug by the bolt 14, before-described, and as will be apparentfrom an examination of saidFig. VI of the drawings. The operation is substantially like that described with reference to the form of locking device shown in the other figures of the drawings. When the concrete is dumped,

the two sections of the chamber are closed together again bypushing that section the rotation of which was arrested from the pieces 8, the slipping of the dogs 6 over the teeth of the ratchets-5 permitting this to be easily accomplished. The arrangement of the ratchets and dogs is of further great ad van tage in that should it be necessary for any reason to back the apparatus it may be done with decreased efiort, since in thatcase the mixing-chamber does not rotate,-and the necessary jolting occasioned by the tumbling and shifting of the material is avoided. Furthermore, when returning for a fresh supply of material to be mixed the machine may be moved so that the wheels rotate in a direction the reyerse of that when the material is to be mixed, allowing the chamber to stand non-rotary.

\Vhen the operator moves the handle out 'of the locking-seat-17, the spring 15 projects the bolt 14, and it remains in that position until ithas-perfor'med its office. The operatormay when the bolt is projected shift the -.-hz= ndle into the locking-seat 1S, and thus relieve the spring of the pressure it would otherwise be required to sustain in the operation.

As shown in Fig. II, the slot through which the handle 16 projects extends slightly for- "ward of the locking-seat 17 for the purpose of permitting the spring 15 to throw the bolt 13 farther forward afterit has released the locking mechanism and arrested. the one section to stand in the path of movement of the dumping-section and block its further. .rotation after it has dumped its contents. When the chamber has been dumped, the operator need only shift'ihe handle out of the lockingseat 18' and move it into the rear locking-seat 17, when the bolt will be housed and held in that position until again released to cause another dumping operation. I

. When the two sections of the chamber are closed together after dumping, as described,

they are locked automatically by the lockingh eads engaging the hasp 10 or lug 10, this being permitted by the inclines on the said locking-heads, which permit the passage of ber of workmen, to economize in time, since.

the mixing of the material is automatic and accomplished in the act of transportation,

and also by rendering the d umpin g automatic,

as described.

Having thus described my invention, what I claim is- 1. In acombined concrete mixing and transporting apparatus the combination with groniul-wheels, of a mixing and transporting chamber carried by the axle of said wheels, consisting of two parts hinged together, and normally rotating with said wheels, substantially as described.

2. In acombined concretemixingandtransporting apparatus, the combination of an axle provided with ground-wheels, a mixing and transporting chamber carried by said axle, and an automatic connection between said chamber and said wheels whereby the latter is bodily rotated in one direction of movement of the apparatus and so remains stationary in the other, substantially as described.

I In a combined concrete niixingand transporting apparatus, thc'combiuation with an axle provided with ground-wheels, of a mix ing-chamljier loosely mounted on said axle, and connections between said wheels and chamber, whereby the latter is compelled to rotate bodily in unison with said Wheels in one direction of movement of the groundwhcels and remain non-rotary in the reverse direction oi movement of said wheels, sul stantialiy as described.

l. In a ctnnhincd concrete mixing and transorting apparatus, the combination with grouml-\vlieels, provided with ratchets, of a mixing and transporting chamber provided with spring dogs engaging said rate-hots, hereby said chamber is compelled to bodily rotate in unison with the wheels in one directitm of movement and remain non-rotary in the other, substantially as described.

5. Inacombinedconcretemixingand transporting apparatus, the combination with an axle provided with ground-wheels and a bodilya'otatablc mixing and transporting chamber, mounted on said axle between said wheels and composed of two parts hinged together, ct means for locking said sections, and an element at'iapted to be projected into the path r oi" said locking means and separate said sections, substantially as described.

ti. In a. combined concrete mixing and transporting apparatus,the combination with a sec-' tional bodily-rotatable mixing and transporting chamber mounted on said arile and composed of two parts hinged together, of means for arresting the rotation of one of said scctit ins while the other continues its rotation and is 'zuitomatically dumped, substantially as described.

T. In acombined concrete mixing and transnorting apparatus, the combination with an e provided with ground-wheels andamixf and transpmting, chamber mounted on d. axle and composed'of two parts hinged ethcr, of means for locking the sections ,ftil'ltll, means adapted to be projected into path of said locking means to unlock the ions and arrest the rotation of one of hem, whereby the other is automatically dumped, substantially as described.

In a combined concrete mixing and transporting apparatus, the combination with an axle provided with ground-Wheels and a bedily-rotatable mixing and transporting chamber mounted on said axle and composed of two parts hinged together, of means for looking the sections together, and a bolt adapted to be projected into the path of and engage saidlocki-ng means to unlock the sections and arrest. the rotation of one of them, whereby the other is automatically dumped, substantially as described.

9. In a combined concrete mixing-and transporting apparatus, the combination with an axle provided with ground-wheelsand abodily-rotatable mixing and transporting chamber mounted on said axle and composed of two parts hinged together, of means for looking the sections together, and a spring-actuated bolt adapted to be projected into the path of and engage said locking means to unlock the sectionsand arrestthe rotation of one of them, whereby the other is automatically dumped, substantially as described.

10. In a combined concrete mixing and.

transporting apparatus, the combination with a sectional bodily-rotatable mixing and transporting chamber, oneof the sections thereof provided with a spring locking-arm and the other with a hasp to engage therewith, of a bolt adaptedto engage said locking-arm and release it from the hasp and to en 'age said hasp and arrest the movement of tne section which carries the latter, whereby the other section is automatically dumped, substantially as described.

11. In a combined concrete mixing and transporting apparatus, the combination with a sectional bodily-rotatable mixing and transporting chamber, one of the sections thereof provided with a spring locking-arm and the other with a keeper to engage therewith, of a bolt adapted to engage said locking-arm and release it from the keeper and to engage said keeper and arrest the movement of the section which carries the latter, whereby the other section is automaticallvdum ed and a runner to support the arrested section, substantially as described.

12. In a combined concrete mixing transporting apparatus, the combination with a sectional hodily-rotatable mixing and transporting chamber, one ofthe sections thereof provided with a spring-arm having lockinghe'ads separated by a space and the other sec tion with a hasp to engage said locking-heads, of a bolt adapted to engage said locking-arm and release it from the hasp and to pass through the space between said locking-heads, engage said hasp and arrestthe movement of the section which carries the latter, whereby the other section is automatically dumped,

substantially as described.

juxtaposition to said chamber for arresting "the rotation of one of'said sections and receiving and supporting the arrested section,-

of one of the sections, and a runner in juxtaposition to said chamber to receive'and .support the arrested section, tion continues its rotation and is automatically dumped substantially as described.

15. ,In a combinedcon-crete mixing, transv porting and dumping apparatus, the-combination-with a bodily-rotatable sectionalmixing and transporting chamber, of means for locking the sections thereof together, a device adapted to engage and release the locking'means and arrest the rotation of one of -rested section,

while the other secthe sections, and a runner in juxtapositionto said chamber to receive and support the arsubstantially as described.

16. In a combined concrete mixing, transporting and dumping apparatus, the. combination with an axle providedwith groundwheels, of a sectional mixing and transporting chamber, carried by said'a-xle between said wheels, means for locking saidsectiohs' together, a device adapted to be projected into the path of said locking means, to unlock the sections and arrest the rotation of one of them, and a runner in juxtaposition to said chamber to receive and support the arrested section, substantially as described. In testimony whereof I have hereunto set my hand in presence of two subscribing witness'es.

A ISAAC-H. FISHER. Witnesses:

GEO. W. Rifle, M. V. COOPER. 

